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Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.